Automotive union main gear

FIELD: transport.

SUBSTANCE: invention relates to machine building and may be used in transport facilities. Proposed main gear comprises drive conical gear 1 running in conical bearings 2, 3 fitted in sleeve 4. Sleeve 4 is elongated radially and secured in reduction gear case 5 by bolts 6 via shims 7. Driven spur gear 8 is fitted on splined shank of gear 1. Master differential has solid cup 10 accommodating differential pinions 11 running on spider 12 splined onto drive shaft 13. Half-axle gears 14, 15 are engaged with differential pinions 11. Gear 14 is made integral with drive sour gear 16. Gear 15 runs in conical bearing 17 fitted in elongated part of sleeve 4.

EFFECT: simplified assembly of main gear.

1 dwg

 

The invention relates to mechanical engineering and can be used in vehicles.

Known anadromous main transmission containing a leading bevel gear mounted on conical bearings located in the glass, which is bonded with the gear, the bevel gear that engages with a leading bevel gear, center differential, with a solid Cup, in which satellites are rotating on the d-pad, which is connected through the slot with the input shaft, half-shaft gears, one of which is made integral with the leading cylindrical gear, and the other installed on the conical bearing is pressed into the gear housing (see application DE 102005021311 A1, publ. 22.12.2005).

A disadvantage of the known constructions are large radial dimensions of the transmission, so as to accommodate the conical bearing polovoy gear center differential and installation of glass leading bevel gear must be in gear housing separate tides in the radial direction, resulting in increased radial dimensions of the crankcase and, as a consequence of all of the main transfer.

Closest to the claimed technical solution of the essential features and achieved technical result is a continuous main gear, tereasa leading bevel gear, mounted on tapered bearings that are located in secured to the gear housing sleeve, a cylindrical driven gear that engages with a leading bevel gear, center differential, integral Cup which satellites are rotating on the d-pad, which is connected through the slot with the input shaft, half-shaft gears, one of which is made integral with the leading cylindrical gear and the other mounted on the conical bearing, located simultaneously in the hole of the housing and the flange of the Cup bearing the leading bevel gear (see US patent No. 6425840, IPC B60K 17/16, 17/36; F16H 48/30, publ. 30.07.2002).

A disadvantage of the known technical solution is the complexity of correct and accurate installation of tapered bearing polovoy gear in the main transmission, due to the fact that when adjusting toothed conical gear you need to move the Cup bearings leading bevel gear in the axial direction, but you must also move the bearing polovoy gear simultaneously with the end face of the gear case to the end surface of the bearing tightly to both ends and Carter, and glass. To do this, you must perform the manufacturing operation joint processing ends of the housing and the Cup Assembly, but is this case is not excluded the possibility of getting into the bearing cavity shavings or fine abrasive, that will cause breakage of the site. If joint processing ends not to, in this case bearing polovoy gear set with the bias that will result in rapid bearing failure.

The task, which directed the claimed technical solution is to simplify Assembly main gear due to more simple adjustment of bevel gearing and provide a slight radial dimensions of the main transfer.

To solve the problem in passing the main gear of a vehicle, containing a leading bevel gear mounted on tapered bearings that are located in secured to the gear housing glass connected with said cylindrical gear driven gear, center differential, integral Cup which satellites are rotating on the d-pad, which is connected through the slot with the input shaft, half-shaft gears, one of which is made integral with the leading cylindrical gear and the other mounted on the conical bearing, the body is made elongated in the radial direction and fixed to the gear housing through a package of shims, with a conical bearing polovoy gear installed in the elongated part of the glass.

There is the following contradiction.

For the forgiveness and more accurate adjustment of the toothed conical gear necessary bearing polovoy gear set only in the gear case, but to do this in the crankcase, you must have a place to put the outer ring of the bearing, which can be provided as follows:

- to increase the radial dimensions of the main gear, but this is unacceptable due to limited space, the main transmission in the vehicle;

- reduce the size of the bearing, but it will reduce the durability of the main transmission.

The claimed technical solution distinctive features, namely, that the body is made elongated in the radial direction and fixed to the gear housing through a package of shims, with a conical bearing polovoy gear is installed in the elongated part of the glass, allowed to simplify the adjustment of the toothed conical gear and thus to simplify Assembly main gear in General, but it provided a slight radial dimensions of the main transfer.

Thus, the set of essential features that characterize established main transmission, allow to resolve the above contradiction.

Based on the above we can conclude that the proposed solution meets the patentability requirements of "novelty" and "inventive step".

The claimed technical solution is illustrated by the drawing, which shows a continuous main re the ache of vehicles in the section.

Communicating the main transmission of the vehicle includes a leading bevel gear 1 mounted on conical bearings 2 and 3, which are located in the glass 4. The cups 4 are elongated in the radial direction and fixed to the crankcase 5 gear bolts 6. Between the end surfaces of the glass 4 and the housing 5 pack installed 7 shims, which has a preliminary thickness. On spline shaft gear 1 set cylindrical driven gear 8, is fixed by a nut 9.

The center differential 10 has an integral Cup 11, which are the satellites 12, rotating the cross-piece 13, which is connected through the slot with the drive shaft 14. With satellites 12 half-shaft geared gears 15 and 16. The gear 15 is made integral with the leading cylindrical gear 17 and the gear 16 mounted on the conical bearing 18, which is mounted in the elongated part of the glass 4.

The lock Assembly main gear is as follows.

First in the Cup 4 is set to a leading bevel gear 1 with adjusted conical bearings 2 and 3, then on the splined shaft gear 1 is mounted a cylindrical driven gear 8 and is tightened by a nut 9. After that, leading bevel gear 1 Assembly with cups 4 is installed in the crankcase 5 gear DG is already is a package of 7 shims and tightened evenly by at least four bolts 6. Then measured the adjustment parameters of bevel gearing leading bevel gear 1, i.e. backlash and contact patch. When the negative results of the measurements produce the dismantling of gears 1 with the glass 4, change the thickness of the package 7 shims and then repeat the previous operation of the Assembly. When getting positive results of measurements of parameters of the conical engagement in the elongated portion of the Cup 4 is set to half-shaft gear 16 is pressed by the inner ring of the bearing 18. Later in the crankcase 5 is mounted in the center differential 10, half-shaft gear 15 and the driven shaft 14.

The claimed technical solution to facilitate Assembly main gear due to more simple adjustment of bevel gearing, it provides a slight radial dimensions of the main transfer.

The claimed technical solution to meet the requirement of industrial applicability and possible to implement on standard manufacturing equipment.

Communicating the main transmission of the vehicle containing the leading bevel gear mounted on tapered bearings that are located in secured to the gear housing glass connected with said cylindrical gear driven gear, m is roseway differential in whole Cup which satellites are rotating on the d-pad, which is connected through the slot with the input shaft, half-shaft gears, one of which is made integral with the leading cylindrical gear and the other mounted on the conical bearing, characterized in that the glass is made elongated in the radial direction and fixed to the gear housing through a package of shims, with a conical bearing polovoy gear is installed in the elongated part of the glass.



 

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